Senior Tier III Network Engineer - O&M & WAN/LAN

Leidos

Springfield (VA)

On-site

USD 116,000 - 210,000

Full time

14 days+

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Job summary

Leidos is seeking a Tier III operations and maintenance network engineer to support WAN/LAN networks, including incident resolution and changes to routing and firewalls. The role requires DoD-compliant credentials and extensive experience with OSPF/BGP/MPLS, plus the ability to coordinate across teams and produce operational documentation.

The successful candidate will be based in the Northern Virginia area, with on-site responsibilities and potential after-hours support as needed.

Qualifications

TS SCI CI poly required.
16 years of combined work history and education as defined (e.g., Doctorate+8, Master+10, Bachelor+12, etc.).
DoD 8570 IAT Level 2 compliance required.
Experience configuring and troubleshooting boundary protection tech (Palo Alto, Cisco ASA, Forcepoint).
Experience with Juniper and Cisco routers and switches.
Knowledge of OSPF, BGP, VPNs, VRFs, MPLS.
Strong communications and MS Office/Visio familiarity.

Responsibilities

Provide Tier III O&M support for WAN/LAN networks and incident resolution.
Monitor network performance and implement routing/firewall changes as required.
Configure, test, and troubleshoot networking hardware and software.
Review requests, assess impact, and advise on technical approaches.
Coordinate with configuration management and implementation teams.
Document network configurations and develop procedures for restoration.
Respond to outages, isolate faults, and support after-hours incident resolution.
Produce reports and input data for network management systems.